Secular period changes in X-ray pulsators.
Abstract
Data on secular period changes in pulsating X-ray sources are compared with the rates predicted due to accretion torques on a spinning, magnetized compact object. It is found that the measurements agree with prediction if the compact object is assumed to be a neutron star. Such information can therefore be used, for example, as a distance indicator for these sources, and also to deduce the accretion rate in pulsating transient sources during their 'low' emission phases.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- March 1977
- DOI:
- 10.1093/mnras/178.1.81P
- Bibcode:
- 1977MNRAS.178P..81M
- Keywords:
-
- Pulsars;
- Secular Variations;
- Stellar Mass Accretion;
- Stellar Models;
- X Ray Sources;
- Angular Momentum;
- Long Term Effects;
- Neutron Stars;
- Stellar Luminosity;
- Astrophysics